稗草是稻田的一种主要杂草,尤其是秧田稗草移栽入大田后对水稻生长影响较大。人工拔除秧田稗草,既花工,又费力;用除草醚等触杀性除草剂秧田除稗,效果往往欠佳。为此,我们于1981年在武义县壶山镇星光大队农科队绿肥田早稻塑料膜覆盖秧田、麦田早稻秧田和连作晚稻杂交稻秧田(以下按此顺序简称为3种秧田)上进行杀草丹防 Barnyardgrass is a major weed in paddy fields, especially barnyard grass seedling transplanting into the field has a greater impact on rice growth. Artificial removal of barnyard grass seedling, both flower workers, and laborious; with herbicides and other contact herbicide seedling barnyard grass, the effect is often poor. To this end, we in 1981 in Wuyi County Huashan Town Star Brigade agricultural team green manure early plastic film covered seedling field, wheat field early rice seedling and continuous late rice hybrid rice seedling (hereinafter referred to in this order referred to as three kinds of seedling) on ​​the grass Dan defense